Publisher : The Korean Institute of Surface Engineering
DOI : 10.5695/JKISE.2010.43.4.205
Title & Authors
Analysis on the Scales formed on the Heat Affected Zone of Low Carbon Steel Weld in NaCl and H2S Water Solutions Kim, Min-Jung; Bae, Dong-Ho; Lee, Dong-Bok;
The A106 Gr B low carbon steel, which was used in the electric power plants and heavy chemical plants, was welded by multi-pass arc welding. The heat affected zone (HAZ) formed by welding was corroded in acid chloride solution, or in saturated containing acid chloride solution, or in saturated containing acid chloride solution under applied current. In this order of corrosion solution, the rate of corrosion increased, because accelerated the iron dissolution, hydrogen evolution, and the formation of nonprotective FeS, whereas the applied current accelerated the electrochemical reaction. The scales formed in acid chloride solution consisted primarily of , while those formed in containing acid chloride solution consisted primarily of and FeS.
A106 Gr B steel;Weld;Corrosion;NaCl;;Heat affected zone;
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